Home / 624,279,901.80-935,412,083.10-393,836,586.60

Finding the Fourth Proportional to 624,279,901.80, 935,412,083.10 and 393,836,586.60

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Solution

The fourth proportional to 624,279,901.80, 935,412,083.10 and 393,836,586.60 is: 590,119,112.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,279,901.80 : 935,412,083.10 = 393,836,586.60 : x
  2. Step 2: Convert to fraction form
    624,279,901.80/935,412,083.10 = 393,836,586.60/x
  3. Step 3: Cross multiply
    624,279,901.80x = 935,412,083.10 × 393,836,586.60
  4. Step 4: Simplify right side
    624,279,901.80x = 368,399,501,872,499,584
  5. Step 5: Solve for x
    x = 368,399,501,872,499,584/624,279,901.80
  6. Step 6: Final answer
    x = 590,119,112.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.